"That is quite easily explained," Ferris said. "You will not be surprised to hear that this Doctor Benin has led a life of adventure. He was out in Mexico four years ago with an exploring party, and accidentally came in contact with the same tribe that has cost us both so dear."

"Ah," exclaimed Seymour. "Now I begin to understand. Like the rest of us, Doctor Benin was after the gold. I presume he came under the ban of the tribe, who made a Nostalgo out of him, and turned him out as hideous as the rest of us."

"You have guessed it exactly," Ferris said gravely. "For over a year Benin was experimenting on the muscles of the face. He discovered, at length, that certain of these muscles had been drawn up by some ingenious process, and partially paralyzed. This it was that gave the face of every Nostalgo its peculiar hideous appearance. Benin discovered, at length, a means by which the temporary paralysis of the muscles could be removed, and a man's normal expression restored to him. You know what I was at one time--look at me now! I tell you that in a month from now you can be absolutely restored to the world, without people shuddering and turning away as they pass you in the street. The same remark applies to Lord Barmouth. Once Anstruther is out of the way, we shall come back to our own again, and know the meaning of happiness once more."

"I think that Barmouth ought to know this," Jack said. "I have already told him about Mr. Ferris, and he is anxious for a meeting to be arranged. But I must go off now, and inform him how successful the operation has been."

Jack found Barmouth pacing up and down the study in no enviable frame of mind. On inquiry, it turned out that Anstruther had sent Barmouth a summons to appear at the trial the following morning and give evidence on his behalf.

"Of course, this is a mere act of simple spite," he said. "He merely wants to expose me to the gaze of the world, and thus spoil the rest of my miserable life for me; but I shall go, I have quite made up my mind to that. At the same time, Anstruther will not realize his purpose. I shall take the precaution to practically hide my face with strips of sticking plaster, and let it be understood that I am suffering from the result of an accident."

Jack proceeded to turn the conversation in the direction of Doctor Benin. He could not complain that he lacked an interested listener. Barmouth would see Benin without delay; indeed, he would call upon him after he had given evidence at the trial to-morrow. There would be no difficulty about this, Jack said, for Benin was pretty sure to attend the hearing in person. Jack's prophecy was borne out next morning by the appearance of Benin in the well of the court. The first witness called was Barmouth; who, true to his promise, had disguised himself almost beyond recognition. As he stepped into the witness-box, Anstruther turned upon him savagely from the dock, and then the face of the latter, with the light upon it, was plainly visible to the little French doctor. Heedless of his surroundings, heedless of the solemnity of the occasion, the Frenchman jumped to his feet, and pointed a shaking finger in Anstruther's direction.

"Murderer, murderer!" he cried. "Dog, is it you?"

Anstruther paused, and threw up his hands like a man who is shot. He fell back, a collapsed heap, on the floor of the dock. A warder rushed forward and raised the prostrate figure.

"I think he is dead, my lord," he said simply.